IDA (d. 559), first king of Bernicia, became king in 547, soon after the foundation of the kingdom of Bernicia by the Angles. He built the fortress of Bebbanburh (Bamborough) and after his death his kingdom, which did not extend south of the Tees, passed in turn to six of his sons. The surname of "Flame-Bearer," some times applied to him, refers not to Ida, but to his son Theodoric (d. 587) .